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#!perl ... 1a 38 0c 1b 41 00 00 00 00 00 00 00 00 a0 70 3d 8a 8d c8 14 41 80 95 43 8b ea 0c 1b 41 00 00 00 00 00 00 00 00
0x4750 v=0 f=00000101 srsid=27700 envelope#2 -> 6 elements, mode=little-endian => 'd<6' 339881.51, 340581.897, 442566.608999999, 443257.832, 0, 0